CTS is proud to release our CTS Walbro 255LPH Inlet & Outlet Fitting to OE VW Connector, this fitting is used when installing a Walbro GSL392 255LPH fuel pump in place of the factory MK4 fuel filter.  We strongly suggest re-installing a factory VW fuel filter in the fuel feed line. Product details: M10 x 1mm threads Clips into factory VW fitting/bundy fitting in the hard line Black anodized finish